dainaed



(No Model.) zsneets sheefl! M. DAIN'ARD.

MACHINE TABLE. 7 No. 284,391. Patented Sept. 4, 1883.v

:fl A? WITNESSES: w INVENTOR:

ghwa m 7% flvmc x b/m BY ATTORNEYS.

N. PETERS, PMw-Lillwgnplnr. Washingwn. 0. l2.

(No Model.) 2 Sheets-Sheet 2.

M. DAINARD.

MAGH-INB TABLE. N() 284391. Patented Sept. 4,1883

WITNESSES: flngmtwom ATTORNEYS.

N. PETERS. Fllule Lilhognphen Washmgtbn. n.c.

UNITED STATES PATENT O FICE.

, MILTON DAINARD, OF WE T EXETER, NEW .YoEK.

MACHINE-TABLE.

SPECIFICATION forming part of Letters Patent No. 284,391, dated September 4, 1883.

Application filed January 5, 1883 (N model.)

a boring-tool may be attached and be rotatedand shifted lengthwise for boring holes, to-

- gether with a contrivance of the table for being readily converted either into a" sawingmachinetable or a'boring-machinetable; and

the arbor is also adapted for the application of a grooving-tool in the'place of the saw when required, all as hereinafter more fully described.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of my improved combined sawing, grooving, and boring ma; chine. 2 is a detail of the same in plan view. Fig. 3 is a sectional elevation of Fig. l on the line a. at. Fig. 4 is a detail showing the application of the groover to the mandrel, and Fig. 5 is a detail showing the boring-tool attached to the mandrel.

The mandrel a is mounted in suitable bearings, 12, under thetable c, for carrying the saw d, as in ordinary sawing-machines, the power being applied by the belte from the drum f, along which the belt may shift when desired. The end 9 of the mandrel is connected with the shifting-lever Z, and the sliding block h is arranged in relation to said shifting-lever and fitted in suitable boxes, 1', to be shifted in front of the lever and be fastened in that position by'a set-screw, 1;, when the machine is to be used for sawing or grooving, to prevent the arbor from being shifted by the lever; but when the machineis to be used for boring, the block is shifted back to allow said lever to be worked for shifting the mandrel by the foot-lever and cord-7c, suitably connected to it. The weight m, suspended from the lever Z by the cord it, pulls the arbor back.

When the machine is to be used for boring, the part 0 of the table is shifted down to the position represented by dotted lines in Fig. 3 by the screw q, the said part of the table being mounted on the vertically-slidi ng supports p for the purpose.

The nut 8, used to fasten the saw (Z and the grooving-tool a, is constructed with a hole through it to enablethe boring-tool tto be applied, and the arbor has the usual socket for the boring-tools.

Power is to be applied to the drum f from a drivingshaft, w, by a wheel,w, and pinion y, said shaft to be operated by a hand-crank, z, or by power applied in any approved way. The g'roover u is to be applied in the same manner that the saw is, and is to be worked the same. i

It will be seen that the machine may be readily converted from one condition to another, and will work as efficiently for the different purposes as machines specially constructed therefor. 7

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent The vertically-shifting portion 0 of a sawing-machine table, shifting supports 0, and adjusting-screw 'q, in combination with the arbor (1, adapted for the application of a boring-tool and for being shifted lengthwise in its bearings, substantially as described.

Witnesses:

JAMES COUP JOHN W. BoYLE.

MILTON DAINARD. 

